Coke Zero Sugar Diet Soda

Name: Coke Zero Sugar Diet Soda
Brand: Coca-Cola

0Avoid

Breakdown

Ultra-processed · 4 contaminants flagged · 6 ingredients to avoid

100

Lab-measured contaminants

Measured against published safety limits

−39

di(2-ethylhexyl) phthalate (dehp)−28

bpf−10

dibutyl phthalate−1

Ingredients

−83

caramel color−13

phosphoric acid−13

aspartame−13

potassium benzoate−12

natural flavors−12

3 smaller deductions−20

Processing

−10

NOVA 4: ultra-processed−10

Adjustments

What it takes to land on the final number

+32

Minimum score+32

Final score0

Contaminants · 18

1 at/over limit

Measured by an independent lab and compared against published safety limits.

Di(2-ethylhexyl) Phthalate (DEHP)11 ppbof 6 ppb

Over the limit — 1.8×US EPA drinking-water MCL, 40 CFR 141.61(c) — 0.006 mg/L. Applied to all foods as the TIGHTEST published DEHP number; the EU food-contact limit is looser (Reg. (EU) 10/2011 as amended by 2023/1442: SML 0.6 mg/kg, plus the 0.6 mg/kg DEHP-equivalent group limit with DBP/BBP/DIBP).

Bpf9.97 ppbof 10 ppb

Just under the limitNot on the EU Union list of substances authorised in food-contact plastics (Reg. (EU) 10/2011 Annex I), and Reg. 2024/3190 restricts hazardous bisphenols; no migration is permitted. Set at 0.01 mg/kg, the detection limit 10/2011 uses for not-detectable (ND) restrictions.

Dibutyl Phthalate13 ppbof 120 ppb

11% of the limitEU food-contact plastics, Reg. (EU) 10/2011 as amended by 2023/1442 — DBP SML 0.12 mg/kg (cut from 0.3). Also inside the 0.6 mg/kg DEHP-equivalent group limit (DBP x5).

Di (2-ethylhexyl) Terephthalate0.0353 ppmof 60 ppm

<1% of the limitEU food-contact plastics, Reg. (EU) 10/2011 — DEHT (FCM 798) SML 60 mg/kg, group restriction with DINCH. No tighter published limit exists (EFSA TDI 1 mg/kg bw/day).

Benzylbutyl PhthalateNDof 6 ppm

Not detectedEU food-contact plastics, Reg. (EU) 10/2011 as amended by 2023/1442 — BBP SML 6 mg/kg (cut from 30). Also inside the 0.6 mg/kg DEHP-equivalent group limit (BBP x0.1 = 6 mg/kg alone).

Bisphenol a (BPA)NDof 1 ppb

Not detectedEU Reg. (EU) 2024/3190 — BPA banned in food-contact materials from 20 Jan 2025 (old 0.05 mg/kg SML repealed); the residual exemptions require NO detectable migration at a 1 ug/kg detection limit. 1 ppb is therefore the tightest published number.

BPS (Bisphenol s)NDof 50 ppb

Not detectedEU food-contact plastics, Reg. (EU) 10/2011 — BPS (4,4'-sulphonyldiphenol) SML 0.05 mg/kg; BfR applies the same 0.05 mg/kg.

Di-n-octyl PhthalateNDof 10 ppb

Not detectedDNOP is not on the EU Union list of substances authorised in food-contact plastics (Reg. (EU) 10/2011 Annex I), so no migration is permitted. Set at 0.01 mg/kg, the detection limit 10/2011 uses for not-detectable (ND) restrictions.

Dicyclohexyl PhthalateNDof 10 ppb

Not detectedDCHP is not on the EU Union list of substances authorised in food-contact plastics (Reg. (EU) 10/2011 Annex I), so no migration is permitted. Set at 0.01 mg/kg, the detection limit 10/2011 uses for not-detectable (ND) restrictions.

Diethylhexyl AdipateNDof 18 ppm

Not detectedEU food-contact plastics, Reg. (EU) 10/2011 — DEHA (FCM 207) SML 18 mg/kg.

DiethylphthalateNDof 10 ppb

Not detectedDEP is not on the EU Union list of substances authorised in food-contact plastics (Reg. (EU) 10/2011 Annex I), so no migration is permitted. Set at 0.01 mg/kg, the detection limit 10/2011 uses for not-detectable (ND) restrictions.

Dihexyl PhthalateNDof 10 ppb

Not detectedDNHP (di-n-hexyl phthalate, EU Repr. 1B) is not on the EU Union list of substances authorised in food-contact plastics (Reg. (EU) 10/2011 Annex I), so no migration is permitted. Set at 0.01 mg/kg, the detection limit 10/2011 uses for not-detectable (ND) restrictions.

Diisobutyl PhthalateNDof 150 ppb

Not detectedEU food-contact plastics, Reg. (EU) 2023/1442 group restriction — DBP x5 + DIBP x4 + BBP x0.1 + DEHP <= 0.6 mg/kg DEHP-equivalents, so DIBP alone may not exceed 0.15 mg/kg. DIBP is not itself an authorised substance.

Diisodecyl AdipateNDof 10 ppb

Not detectedDIDA (diisodecyl adipate) is not on the EU Union list of substances authorised in food-contact plastics (Reg. (EU) 10/2011 Annex I), so no migration is permitted. Set at 0.01 mg/kg, the detection limit 10/2011 uses for not-detectable (ND) restrictions.

Diisodecyl PhthalateNDof 1.8 ppm

Not detectedEU food-contact plastics, Reg. (EU) 10/2011 as amended by 2023/1442 — DINP+DIDP group SML 1.8 mg/kg (sum). Applied to each alone.

Diisononyl 1,2-cyclohexanedicarboxylic AcidNDof 60 ppm

Not detectedEU food-contact plastics, Reg. (EU) 10/2011 — DINCH (FCM 775) group restriction with DEHT, 60 mg/kg. No tighter published limit exists (EFSA TDI 1 mg/kg bw/day).

Diisononyl ortho PhthalateNDof 1.8 ppm

Not detectedEU food-contact plastics, Reg. (EU) 10/2011 as amended by 2023/1442 — DINP+DIDP group SML 1.8 mg/kg (sum). Applied to each alone.

DimethylphthalateNDof 10 ppb

Not detectedDMP is not on the EU Union list of substances authorised in food-contact plastics (Reg. (EU) 10/2011 Annex I), so no migration is permitted. Set at 0.01 mg/kg, the detection limit 10/2011 uses for not-detectable (ND) restrictions.

Ingredients · 10

GoodCautionAvoid

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Healthier swaps

Same shelf, cleaner ingredients

Nutrition facts

Nutrient	Per 100ml	Per serving
Calories	0 kcal	0 kcal
Fat	0 g	0 g
Carbohydrates	0 g	0 g
Sugars	0 g	0 g
Protein	0 g	0 g
Sodium	0.01 g	0.04 g

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Common questions

Is Coca-Cola Coke Zero Sugar Diet Soda healthy?

Coca-Cola Coke Zero Sugar Diet Soda scores 0/100 on Tallow — our avoid band. That number comes from what is on the label: the ingredients, how processed it is, and what it is packaged in. Per serving it carries 0g protein and 0g sugar. It is not a verdict on your diet — Tallow does not weigh calories, portion size or how often you eat it, so a high score means the ingredients are clean, not that the food is unlimited.

What is in Coca-Cola Coke Zero Sugar Diet Soda?

Coca-Cola Coke Zero Sugar Diet Soda lists 10 ingredients, starting with Carbonated Water, Caramel Color, Phosphoric Acid, Aspartame and Potassium Benzoate. Ingredients are listed in descending order by weight, so the first few make up most of what you are eating.

How many calories are in Coca-Cola Coke Zero Sugar Diet Soda?

0 kcal per serving, or 0 kcal per 100ml. Calories are only part of the picture — Tallow scores Coca-Cola Coke Zero Sugar Diet Soda on what the ingredients are, not how many calories they carry.

Does Coca-Cola Coke Zero Sugar Diet Soda contain seed oils?

No. Nothing in Coca-Cola Coke Zero Sugar Diet Soda’s ingredient list matches a seed oil — canola, soybean, corn, cottonseed, grapeseed, sunflower, safflower, rice bran or peanut oil, or an unspecified "vegetable oil".

How processed is Coca-Cola Coke Zero Sugar Diet Soda?

Coca-Cola Coke Zero Sugar Diet Soda is NOVA group 4: ultra-processed. That is the top of the scale and the classification the score penalises most heavily.

How does Coca-Cola Coke Zero Sugar Diet Soda compare to other soda & soft drinks?

At 0/100 Coca-Cola Coke Zero Sugar Diet Soda scores worse than most soda & soft drinks we have scored. A higher-scoring option in soda & soft drinks is poppi Prebiotic Soda Cherry Limeade at 92/100.

Is Coca-Cola Coke Zero Sugar Diet Soda organic?

Coca-Cola Coke Zero Sugar Diet Soda is not certified organic in our data.

Has Coca-Cola Coke Zero Sugar Diet Soda been lab tested?

Yes. 18 substances in Coca-Cola Coke Zero Sugar Diet Soda have a laboratory result on file — see the Contaminants section above for each reading and the limit it was measured against.

Does Coca-Cola Coke Zero Sugar Diet Soda contain phthalates?

Yes. A lab detected DEHP at 11 ppb against a 6 ppb limit and dibutyl phthalate at 13 ppb against a 120 ppb limit in Coca-Cola Coke Zero Sugar Diet Soda. It tested for 9 other phthalates and found none above its detection limit. Each reading is in the Contaminants section above.

Full methodology: how we score products.